The rise of Donald Trump is a clear sign that the Republican Establishment is out of touch with the Republican base. The base can no longer be fooled. The Republican Establishment represents Wall Street, Big Oil, and corporate leaders who benefit from international income redistribution scams, falsely marketed as trade agreements, as well as open borders, are completely at odds with the base. The last people to figure that out was the establishment.
A recent Harvard/Politico poll showed 85 percent of Republicans believe international trade scams cost the US more jobs than it creates. Yet the establishment, along with President Obama and Democratic henchmen, such as Wall Street Senator Ron Wyden, continue to push the Trans Pacific Partnership (TPP), the largest income and political power redistribution scam in US history.
During the presidential primaries, poll after poll showed Democratic candidate Bernie Sanders with much wider leads over Donald Trump than Hillary Clinton. This suggests that many Republicans are ready for change, and many of them were not happy with Trump. But Trump was their only choice.
The Republican Establishment was often battling it out with the Koch Brothers and their Tea Party wing of the Republican Party. The Koch’s also want trade scams and open borders in opposition to the base.
All of this suggests the Republican Party may be on the verge of a long-term splintering, especially since a large chunk of the base preferred Sanders, a New Deal Democrat disguised as a Democratic Socialist.
This also suggests why in 2015 Republican Wall Street US Senate Leader Mitch McConnell insisted to President Obama that a Democrat had to introduce Fast Track legislation into the senate. Wall Street’s choice to do this was Wall Street Senator Ron Wyden, a man whose votes in congress on behalf of Wall Street had cost his state a minimum of a hundred thousand jobs in the last ten years. No Republican senator dared to introduce the legislation in the senate. So the establishment clearly knew it was out of touch with its base.
John Hively's Blog: News and Analysis of the War Against the Middle Class 
Political parties do change over time, even while retaining the same name. Today’s Republicans aren’t very similar to Abraham Lincoln’s Republicans, or even the GOP of the 1960s. Trump’s base doesn’t appear to be the same thing as the establishment Republican base any more, but I don’t know who should be more entitled to the party name. The Democrats have equivalent splits, but they are currently referring to them as “wings”, progressive wing etc.
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